Universal Slot PCBs
Functional Block Diagrams
Strata CTX General Description 11/02 23
Figure 8 CTX100 and CTX670 CO Line Side Functional Block Diagram
RDTU2
• 2T1 / DS1(24 Channels / Lines)
• Loop Start, Ground Start, Tie, DID
• Digital Voice Lines
Channel
Service
Unit (CSU)
25-pair Amphenol
TOSHIBA NDTU Cable
DB15
PLL Synchronization Circuits
2
RCOU
4 Loop Start Co Lines (Analog)
RGLU2
4 Loop or Ground Start CO Lines (Analog)
RCOS
(Optional PCB on RCOU Only):
4 Loop Start CO Lines (Analog)
RCIU2
RCIS
4 Caller ID Circuits
4 Caller ID Circuits
(Two 4-Wire Modular Jacks)
MDF
(Two 4-Wire Modular Jacks)
(Two 4-Wire Modular Jacks)
(Two 4-Wire Modular Jacks)
(Two 4-Wire Modular Jacks)
1
RDDU
4 DID CO Lines (Analog)
REMU
4 E&M Tie Lines (Analog)
(REMU, Four 8-Wire Modular Jacks)
(Two 4-Wire Modular Jacks)
Secondary Protectors
2
RPTU1 or RPTU2
ISDN PRI (23B+1D channels)
Digital Voice/Data
Toshiba RPRI-CBL-KIT
Channel
Service
Unit (CSU)
8-wire Modular Jacks
2
ISDN BRI (U)
2 Circuits (NT-1 )
Voice/Data (2B+D)
RBUU
RBUS
ISDN BRI (U)
2 Circuits (NT-1)
Voice/Data (2B+D)
U
3
U
3
8-wire Modular Jacks
8-wire Modular Jacks
ISDN BRI (S/T)
2 Circuits (TE)
Voice/Data (2B+D)
RBSU
NT1 per circuit
2
U
3
T
3
8-wire Modular Jacks
RMCU
Trunk Circuits for E911
RCMS 2 Trunk Circuits
RCMS 2 Trunk Circuits
CAMA Line (2-wire Modular Jacks)
CAMA Line (2-wire Modular Jacks)
Network Demarcation Point
Remote Location(s)
Remote Location(s)
BVPU
Voice Over IP Unit (4 Circuits)
BDKU/BDKS or PDKU
(CTX100 & CTX670) or
RRCU
Remote Cabinet Interface Card
Optical Fiber Cable 3 km/(1.86 mi.)
10Base-T
CTX Expansion
Cabinets
Digital
Telephone
MCK
EXTender
MCK
Gateway
IP Network
IP Network
5903
4
Central Office
Centrex
PBX
Common Carrier
Other Telephone System
E911 Public Safety Answer
Point (PSAP)
Priviate Networking Lines
•
•
•
•
•
•
•
•
•
•
•
•
Data and Speech Highway
QSIG networks (RPTU2)
4
Page ScrollMode Feature
Msg
Mic Redial
Spdial
Spkr
Cnf/Trn
Hold
Vol
1. RCIU2/RCIS tip/ring cross
connected to RCOU, RCOS, or
RGLU tip/ring at MDF.
2. Customer-supplied equipment.
3. U, S, T, R, are ISDN reference
model termination points.
4. RPTU2 is required for QSIG
Networking.
CTX / DK
BVPU
(CTX100 only)
ADKU
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